mirror of https://github.com/sudo-project/sudo.git
203 lines
3.9 KiB
C
203 lines
3.9 KiB
C
/*
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* SPDX-License-Identifier: ISC
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*
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* Copyright (c) 2009-2021 Todd C. Miller <Todd.Miller@sudo.ws>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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/*
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* This is an open source non-commercial project. Dear PVS-Studio, please check it.
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* PVS-Studio Static Code Analyzer for C, C++ and C#: http://www.viva64.com
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*/
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#include <config.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <stdio.h>
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#include <stdlib.h>
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#ifdef HAVE_STDBOOL_H
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# include <stdbool.h>
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#else
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# include <compat/stdbool.h>
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#endif
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#include <pathnames.h>
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#include <sudo_compat.h>
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#include <sudo_debug.h>
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#include <sudo_util.h>
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#include <sudo_iolog.h>
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static unsigned int sessid_max = SESSID_MAX;
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static mode_t iolog_filemode = S_IRUSR|S_IWUSR;
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static mode_t iolog_dirmode = S_IRWXU;
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static uid_t iolog_uid = ROOT_UID;
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static gid_t iolog_gid = ROOT_GID;
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static bool iolog_gid_set;
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static bool iolog_docompress;
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static bool iolog_doflush;
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/*
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* Reset I/O log settings to default values.
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*/
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void
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iolog_set_defaults(void)
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{
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sessid_max = SESSID_MAX;
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iolog_filemode = S_IRUSR|S_IWUSR;
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iolog_dirmode = S_IRWXU;
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iolog_uid = ROOT_UID;
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iolog_gid = ROOT_GID;
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iolog_gid_set = false;
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iolog_docompress = false;
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iolog_doflush = false;
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}
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/*
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* Set max sequence number (aka session ID)
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*/
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void
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iolog_set_maxseq(unsigned int newval)
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{
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debug_decl(iolog_set_maxseq, SUDO_DEBUG_UTIL);
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/* Clamp to SESSID_MAX as documented. */
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if (newval > SESSID_MAX)
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newval = SESSID_MAX;
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sessid_max = newval;
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debug_return;
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}
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/*
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* Set iolog_uid (and iolog_gid if gid not explicitly set).
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*/
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void
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iolog_set_owner(uid_t uid, gid_t gid)
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{
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debug_decl(iolog_set_owner, SUDO_DEBUG_UTIL);
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iolog_uid = uid;
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if (!iolog_gid_set)
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iolog_gid = gid;
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debug_return;
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}
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/*
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* Set iolog_gid.
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*/
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void
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iolog_set_gid(gid_t gid)
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{
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debug_decl(iolog_set_gid, SUDO_DEBUG_UTIL);
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iolog_gid = gid;
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iolog_gid_set = true;
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debug_return;
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}
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/*
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* Set iolog_filemode and iolog_dirmode.
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*/
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void
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iolog_set_mode(mode_t mode)
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{
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debug_decl(iolog_set_mode, SUDO_DEBUG_UTIL);
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/* I/O log files must be readable and writable by owner. */
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iolog_filemode = S_IRUSR|S_IWUSR;
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/* Add in group and other read/write if specified. */
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iolog_filemode |= mode & (S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH);
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/* For directory mode, add execute bits as needed. */
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iolog_dirmode = iolog_filemode | S_IXUSR;
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if (iolog_dirmode & (S_IRGRP|S_IWGRP))
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iolog_dirmode |= S_IXGRP;
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if (iolog_dirmode & (S_IROTH|S_IWOTH))
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iolog_dirmode |= S_IXOTH;
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debug_return;
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}
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/*
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* Set iolog_docompress
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*/
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void
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iolog_set_compress(bool newval)
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{
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debug_decl(iolog_set_compress, SUDO_DEBUG_UTIL);
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iolog_docompress = newval;
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debug_return;
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}
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/*
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* Set iolog_doflush
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*/
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void
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iolog_set_flush(bool newval)
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{
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debug_decl(iolog_set_flush, SUDO_DEBUG_UTIL);
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iolog_doflush = newval;
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debug_return;
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}
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/*
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* Getters.
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*/
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unsigned int
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iolog_get_maxseq(void)
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{
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return sessid_max;
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}
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uid_t
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iolog_get_uid(void)
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{
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return iolog_uid;
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}
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gid_t
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iolog_get_gid(void)
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{
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return iolog_gid;
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}
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mode_t
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iolog_get_file_mode(void)
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{
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return iolog_filemode;
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}
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mode_t
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iolog_get_dir_mode(void)
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{
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return iolog_dirmode;
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}
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bool
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iolog_get_compress(void)
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{
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return iolog_docompress;
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}
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bool
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iolog_get_flush(void)
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{
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return iolog_doflush;
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}
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